3. that ( I, can be omitted)
4. HJ who studied at the same university as my sister, has moved to Europe ( NI, cannot be omitted)
5 Steve, who is getting married..( NI, cannot be omitted)
6 The car which was outside (NI, cannot be omitted)
7. The clothes that she is wearing...( I, can be omitted)
8. Have you seen the film that MA directed ? (I, can be omitted)
9. That's the athlete whose leg was broken ( NI, cannot be omitted)
10. My house that I bought last year needs painting ( NI, cannot be omitted)
11. The girl who spoke to you (NI, cannot be omitted)
12 Bob, who is a very good skier ( NI, cannot be omitted)
